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Hemimorphite from
Esgair Hir & Esgair Fraith mines (Cambrian Mine; Cardigan Consolidated Mine; Welsh Potosi Mine; Kylon Potosi Mine), Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK


02399650017272035651126.jpg
Hemimorphite

Esgair Hir & Esgair Fraith mines, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
06566980017272017507586.jpg
Hemimorphite, etc.

Esgair Hir & Esgair Fraith mines, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
05104660017272017525308.jpg
Hemimorphite

Esgair Hir & Esgair Fraith mines, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
09569810017272017531000.jpg
Hemimorphite

Esgair Hir & Esgair Fraith mines, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
03771690017368708942694.jpg
Hemimorphite

Esgair Hir & Esgair Fraith mines, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
06566980017272017507586.jpg
Hemimorphite, etc.

Esgair Hir & Esgair Fraith mines, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
05104660017272017525308.jpg
Hemimorphite

Esgair Hir & Esgair Fraith mines, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
09569810017272017531000.jpg
Hemimorphite

Esgair Hir & Esgair Fraith mines, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
07829580017272035686704.jpg
Hemimorphite

Esgair Hir & Esgair Fraith mines, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
06566980017272017507586.jpg
Hemimorphite, etc.

Esgair Hir & Esgair Fraith mines, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
01046610017272017604934.jpg
Hemimorphite

Esgair Hir & Esgair Fraith mines, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
09569810017272017531000.jpg
Hemimorphite

Esgair Hir & Esgair Fraith mines, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
Locality type:Mine
Classification
Species:Hemimorphite
Formula:Zn4Si2O7(OH)2 · H2O
Comments:Colourless lath-like xls to 0.75mm, or as green thin botryoidal crusts to a few cms sq. Hemimorphite from Esgair Fraith is found in much richer specimens, and maybe some of the best from mid-Wales. Drusey crystal masses to several cms were found 20-30 years ago (1980ish). Sometimes with a slight blue tint.
Habit:Bladed divergent bladed crystals, botryoidal.
Colour:Colourless-white, shades of green
Abundance at site:Rare
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Susannite9
Linarite5
Cerussite4
Caledonite3
Redgillite2
Wroewolfeite2
Pyromorphite1
Anglesite1
Brochantite1
Smithsonite1
Covellite1
Galena1
Bechererite1
Malachite1
Cuprite1
Hydrocerussite1
Data
Mineral Data:Click here to view Hemimorphite data
Locality Data:Click here to view Esgair Hir & Esgair Fraith mines (Cambrian Mine; Cardigan Consolidated Mine; Welsh Potosi Mine; Kylon Potosi Mine), Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
Photo GalleryView Gallery (4 photos)
Data Identifiers
Mindat Occurrence Record ID:16435
Long-form Identifier:1:3:16435:3
GUID (UUID V4):0
Nearest other occurrences of Hemimorphite
2.1km (1.3 miles) ⓘEaglebrook Mine, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
3.0km (1.9 miles) ⓘHenfwlch Mine, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
3.4km (2.1 miles) ⓘHafan Mine (Canninog Mine; Bwlch Canninog Mine), Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
3.7km (2.3 miles) ⓘYstrad Einion Mine (Dolgoch Mine), Furnace, Ysgubor-y-coed, Ceredigion, Wales, UK
3.7km (2.3 miles) ⓘBryn-yr-Afr Mine, Ponterwyd, Trefeirig, Ceredigion, Wales, UK
4.2km (2.6 miles) ⓘBwlch Glas Mine, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
6.9km (4.3 miles) ⓘBrynarian Mine (Cardigan Bay Consols Mine), Tre-Taliesin, Llangynfelyn, Ceredigion, Wales, UK
7.5km (4.6 miles) ⓘLlain-hir Mine, Tre-Taliesin, Llangynfelyn, Ceredigion, Wales, UK
7.5km (4.7 miles) ⓘLletty Evanhen Mine (Vaughan Mine), Bontgoch, Trefeirig, Ceredigion, Wales, UK
8.3km (5.2 miles) ⓘMynydd Gorddu Mine, Bontgoch (Elerch), Ceulanymaesmawr, Ceredigion, Wales, UK
References
Rust, S. A., Mason, J. S. (1988) The Minerals of Esgair Hir Mine, Bwlch-y-Esgair Hir, Ceulanymaesmawr, Dyfed, Wales . UK Journal of Mines and Minerals 5, 35-43
 
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